JPS61204485A - Mount jig for double door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a double-opening fixture that can be attached to a rotary door so that the door can be opened and closed in either the left or right direction.

(Prior Art) Conventionally, as a means for making this kind of door capable of opening in both directions, there exists, for example, the method described in Japanese Utility Model Publication No. 52-27064. That is, in this conventional device, as shown in FIG. 10, the main body 17 and the door 18 are connected by two intersecting arms 50, 50, and a sliding groove 51.5 provided in the arms 50.50.
By disposing rollers 52 on the door 1, the door 18 can be opened in both directions.

(Problems to be Solved by the Invention) However, in the conventional device, the door 18 and the main body 17 are simply connected by a link mechanism of arms 50 and 50 that intersect with each other. In order to rotate the door 18 in the direction of arrow A and open it as shown in FIG. In this situation, there was a problem in that a gap l had to be provided between the door 18 and the main body 17, as shown in FIG. 10, in order to provide play for the movement of the fulcrum P. Therefore, in the past, cushioning materials 53, 53 to prevent the occurrence of the gap 1 were indispensable, and the installation work of the cushioning materials was complicated and the number of parts increased, resulting in high costs. First of all, it had a major problem that made it look very unsightly.

Furthermore, in the conventional method, as shown in FIG. 11, when the roller 52 moves to the end of the sliding groove 51, 51, the rotational movement of the door 18 is restricted and cannot be rotated any further. However, as a matter of course, there is a limit to the formation dimensions of the sliding grooves 51 and 51, and in any case, the roller 5
2 restricts the rotational movement of the door 18, for example, it is impossible to fully open the door 18 by rotating it 180 degrees, and it is difficult to take things in and out of the main body 17 that has the door. It also had problems that made it extremely inconvenient.

Furthermore, the conventional device has a roller 5 on the arm 50.50.
Since the sliding groove 51.51 on which the arm 50.50 slides must be provided over the long dimension, the machining work of the sliding groove 51.51 becomes complicated, and the strength of the arm 50.50 is significantly reduced. However, this method also has the problem of making it extremely difficult to manufacture.

The present invention was devised to solve the above-mentioned conventional problems, and its purpose is to keep the door in a state where the center of rotation does not move when the door is rotated. In addition to being provided in contact with the main body without using a member such as a gunjon, the door can be fully opened in either the left or right direction, and without the need for complicated machining work such as a sliding groove on the arm. The purpose is to simplify the manufacturing work.

(Means for Solving the Problems) The present invention solves the problems of the conventional art by developing an attachment fixture having a link mechanism that is completely different from the conventional link mechanism that intersects two arms. The gist of the structure is that the upper and lower support plates 4.
5, and one end 9a of the mounting frame 1.
The first arm 9 is rotatably supported on the lower surface side of the upper support plate 4 at one end, and the one end portion 11a is rotatable toward the upper surface side of the lower support plate 5 at the other end of the mounting frame 1. The third arm 11 is freely supported and has two ends 13a and 13b that are rotatable toward the lower surface of the other end 9b of the first arm 9 and the upper surface of the other end 11b of the third arm 11, respectively. It consists of a supported second arm 13 for mounting the door, and the second arm 13 is configured to rotate in either left or right direction in conjunction with the first arm 9 and third arm 11, respectively. It's in the middle of the day.

(Function) Therefore, the mounting device having the above structure is used by attaching a door to the second arm 13 and attaching the mounting frame 1 to the main body. In order to rotate in conjunction with the first arm 9 or the third arm 11 during rotation, the second arm 13 rotates around the support point of the first arm 9 or the third arm 11 with the mounting frame 1. As a result, the center of rotation of the door attached to the second arm 13 never moves with respect to the main body. Further, the second arm 13 is connected to the first arm 9 and the third arm.
The other ends 9b and llb of the arm 11 are rotatable, and the first arm 9 and third arm 11 are rotatable relative to the upper and lower support plates 4 and 5 of the mounting frame 1. In addition, when the second arm 13 rotates in conjunction with either the first arm 9 or the third arm 11, the rotation is not restricted by the other arm, and the second arm 13 can rotate in both left and right directions over a wide angle range. This makes it possible to rotate.

(Example) Hereinafter, embodiments of the present invention will be described according to an example shown in the drawings.

That is, in FIGS. 1 and 2, 1 has flat upper and lower support plates 4 and 5 protruding from the front side of the back plate 2 having convex portions 3.3a at both ends. The mounting frame 1 has a substantially U-shaped cross section, and the mounting frame 1 has a hole 7 formed in the convex portion 3 of the upper support plate 4 at one end 6 and a convex portion of the lower support plate 5 at the other end 6a. A hole 8 is bored in 3c. Reference numeral 9 designates a first arm having a planar shape similar to that of the support plate 4.5, and the arm 9 is formed by fitting a pin 10 protruding from one end 9a into the hole 7 of the upper support plate 4. A pin lO is provided on the lower surface side of the upper support plate 4.
It is pivoted so that it can rotate freely using the fulcrum. 11 is the first
A third arm having the same shape as the arm 9 is shown, and the arm 11 has one end 11a fitted with the pin 12 and the hole 8 of the lower support plate 5 so that the pin 12 is attached to the upper surface side of the lower support plate 5.
It is pivoted so that it can rotate freely using the fulcrum.

Reference numeral 13 indicates a second arm provided with a door mounting plate 14 on the front surface, and the arm 13 has one end 13a pivotably pivoted to the lower surface side of the other end 9b of the first arm 9 by means of a pin 15. At the same time, the other end 13b is rotatably attached to the upper surface side of the other end 11b of the third arm 11 by a pin 16. Note that the pivot positions of the second arm 13 with the first and third arms 9 and 11, that is, the pins 15 and 16,
is located on the same axis as the pin 12.10 that pivotally connects the third arm 11 and the first arm 9 to the mounting frame 1.

The present embodiment has the above-mentioned configuration, and the usage and operation thereof will be explained next. First, as shown in Fig. 3, the mounting frame l
is installed in the main body 17 of a predetermined cupboard or the like, and the convex portions 3° 3a of the upper and lower support plates 4, 5 of the mounting frame 1 are attached to the main body 17.
The second arm 1 is made to protrude outward from the front surface of the
It is used with the door 18 fixed to the slope 14 on the front side of 3. Note that the door 18 is provided so as to be in contact with the front surface of the main body 17. However, when opening the door 18 in the convex direction of the arrow, if one pull the handle 19 of the door 18 toward you,
As shown in FIG. 4, a similar force acts on the second arm 13, so the second arm 13 rotates in the convex direction of the arrow with the pin 15 as a fulcrum. The end 13b of the second arm 13 is the end 11 of the third arm 11.
Since the second arm 13 and the third arm 11 are connected to each other by the pin 16, the second arm 13 and the third arm 11 move together.
Since the arm 13 substantially rotates about the fulcrum of the third arm 11, that is, the position of the pin 12, there is no possibility that the center of rotation of the door 18 will be misaligned. Further, the second arm 13 and the third arm 1
1 is rotatable with respect to the first arm 9 and the lower support plate 5, respectively, so that the rotation of the door 18 is not restricted at all, and the second arm 13 and the third arm 11
It can be rotated until it comes into contact with the back plate 2 or the main body 17 of the mounting frame 1, and rotation of 180 degrees or more is possible. During the rotation, the first arm 9 has one end 9a connected to the upper support plate 4 with a pin 10, so that it rotates in conjunction with the second arm 13. There will be no problems, and it will remain housed in the mounting frame. Also, when rotating the opened door 18 to the original closed state, the second arm 13
The third arm 11 rotates in conjunction with the third arm 11, and the door 18 rotates around the axis of the pin 12 in a fixed position, so that it comes into contact with the front surface of the main body 17 as in the original closed state. Thus, the door 18 can be completely closed without creating any gap in the front of the main body 17. Furthermore, when the door 18 is to be rotated in the two directions of the arrows opposite to the above, the third arm 11 is housed in the mounting frame I as shown in FIG. 9 and second arm 13
are interlocked and rotated around the axis of the pin 10, and can be rotated by more than 180 degrees as described above,
Further, even during the rotation, the center of rotation of the door 18 does not shift in any way, so that the front surface of the main body 17 can be closed in an airtight state.

Incidentally, FIGS. 6 to 8 show an embodiment in which the fixture according to the present invention is provided with a locking mechanism. That is,
When using the fixture according to the present invention, for example, when pulling the door 18 in the direction of the arrow /' in the state shown in FIG.
5 and pin 12 so that no rotational moment is applied to the door 18.
However, if the door 18 is opened or closed roughly, one end 13a of the second arm 13
is pulled toward the front, and the other end 9b of the first arm 9 slightly rotates toward the front, resulting in an unsightly appearance. The present embodiment is constructed to solve these difficulties, and to explain its construction, FIG. 6 shows a locking device;
In the figure, reference numerals 20 and 20a indicate locking plates that sandwich spacers 21 and 21 and are riveted to each other with stepped rivets 22, one end 23 of one locking plate 20 and the other locking plate 20. The other end portion 24 of the stop plate 20a is provided with locking protrusions 25 and 25a facing each other in a planar oval shape, and the protrusions 25, 2
A locking groove 26.26a and tapered surfaces 27.27a and 28.28a are formed on the inner side and the tip of 5a.

Reference numeral 29 denotes a frame body with a front opening shape, and the frame body 29 has the upper and lower ends of the spacers 21 and 21 inserted into elongated holes 30 bored on the upper and lower surfaces thereof, and the locking plates 20 and 20a are inserted. It is stored so that it can move back and forth in the horizontal direction. 31.31 connects the locking plate 20.20a housed in the frame 29 to the frame 29.
The springs are shown for biasing to position them in the center. The locking device 32 has the above-mentioned configuration, and is provided on the rear side of the mounting frame 1 having the hole 36 in the back plate 2, as shown in FIG.

In addition, the locking protrusion 25.25a of the locking plate 20.20a is inserted into the mounting frame 1, and the upper surface of the other end 9b of the first arm 9 is inserted into the locking groove 26.26a. A shaft 34 protruding from the
and a shaft 3 protruding from the lower surface of the other end 11b of the third arm 11.
5 are respectively inserted and locked.

Therefore, with the above configuration, the second arm 13 and the third arm
When the door is opened by rotating the arm 11 in the direction of arrow H in the state shown in FIG. Lock f! to move it to the front side while pressing ! 20.20
a moves in the direction of the arrow and engages the shaft 35 and the locking protrusion 25a.
The third arm 11 and the second arm 13 can be rotated without any problem, and the shaft 34 of the first arm 9 is disengaged from the locking groove 26 of the locking plate 20. Since it is located at a deep position, the engagement between the shaft 34 and the locking protrusion 25 is reliably maintained, and it is possible to prevent the first arm 9 from unduly rotating toward the front side. It is.

Further, the locking plate 20.20a is connected to the shaft 3 of the third arm 11.
5 is released from the locking protrusion 25a and at the same time moves back to the original central position by the elastic force of the spring 31.31, and when the door is closed, the third arm 11 The shaft 35 comes into contact with the tapered surface 28a of the locking protrusion 25a and pushes the locking plate 20.20a again in the direction of the arrow, so that it is locked in the locking groove 26a and the door is secured. A lock will be taken. Also, on the other hand, the second
When the arm 13 and the first arm 9 are rotated, the third arm 11 can be prevented from unduly rotating in the same manner as described above by the engagement between the shaft 35 and the locking protrusion 25a.

In the above embodiment, the locking device 32 is provided as a means for preventing the other first arm or third arm from unduly rotating when the second arm is rotated, but the present invention Even if the first arm or the third arm rotates improperly during use, the angle of rotation is extremely small, and inappropriate rotation of the arm only occurs when the door is opened violently, so it is not practical. Since the opening/closing function of the upper door is not impaired in any way, the locking device as described above is naturally not an essential requirement.

Further, in the above embodiment, the upper and lower support plates of the mounting frame 1 are formed to have convex portions 3.3a at both ends, but the details of the support plates and the entire mounting peripheral frame are There is no limitation on the shape of the arm, and it is sufficient that upper and lower support plates are provided to support one end of each of the first arm and the third arm.

Furthermore, the present invention is not limited to the specific shapes of the first, second, and third arms as in the above embodiments, and the end of each arm is rotatably supported by another arm or a mounting frame. The means for this purpose is not limited to the use of pins as described above, and the specific means thereof are not limited, and the design of the specific structure of each part can be changed within the intended scope of the present invention.

In addition, the present invention is not limited to its specific usage, and is not limited to providing a single door to a main body such as a cupboard as in the above embodiment, for example, a plurality of doors 18 as shown in FIG. In the cabinet 36 having the doors 18 at both ends
a, 18a is configured to open outward, and the door 18b in the center is configured to open on both the left and right sides, so that there are openings on two sides on the left and right, and L
It is possible to manufacture a cabinet that is easy to use and provides the following.

(Effect of the Invention) Like the ridge, the present invention has a first arm and a third arm whose one end is rotatably supported by the upper and lower support plates at both ends of the mounting frame.
A second arm for attaching the door is provided with both ends rotatably supported by the first arm and the third arm, so that when the second arm rotates left and right, The first arm or the third arm is configured to rotate around fixed support positions between the first arm or the third arm and the upper and lower support plates of the mounting frame. , it is possible to completely prevent the door from shifting toward the main body due to the shift in the center of rotation when the door is rotated, as was the case in the past.
It is possible to directly attach the door to the main body without using any conventional members such as cushions, and as a result, the number of parts such as cushions, which were previously considered essential, can be reduced and the manufacturing cost can be reduced. At the same time, we have achieved the particularly remarkable effect of being able to improve the appearance and appearance of the product.

Further, in the present invention, the second arm for attaching the door is rotatable in conjunction with the other first arm or the third arm using its both ends as fulcrums, and the rotation angle of the arm is set at the intersection of the arms as in the conventional case. Since the movement of the rollers is not restricted in any way, each arm can be rotated through a very large angle to open the door, for example, 180 degrees. It also has the great effect of making it easier to take things in and out of the main body.

Furthermore, the present invention is composed of a link mechanism in which each arm is rotatably supported and connected, and there is no need for the conventional work of machining a sliding groove on each arm over almost its entire length. Therefore, in addition to being extremely easy to manufacture, it also has the advantage that the door can be firmly attached without reducing the strength of the arm.

In this way, the present invention utilizes a link mechanism with a new structure that is completely different from the conventional one, and has achieved the above-mentioned special effects. Because all you have to do is attach it to the second arm,
It also has the advantage that the work of attaching the door to the main body can be done easily and quickly, and its practical value is great.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the fixture according to the present invention, with FIG. 1 being a perspective view and FIG. 2 being an exploded perspective view. FIG. 3 is a partially cutaway perspective view showing the state in which the door is attached. FIGS. 4 and 5 are perspective views of main parts showing operating states. 6 shows the locking device, FIG. 6(a) is a front view, and FIG. 6(b) is a partially cutaway sectional plan view taken along the line A--A in FIG. 6(a). FIG. 7 is a sectional view of a main part showing a state in which the locking device is attached to a fixture. FIG. 8 is a partially cutaway sectional plan view showing the operating state of the locking device. FIG. 9 is a schematic plan view showing another usage example. FIGS. 10 and 11 are plan views of main parts showing a conventional example. 1...Mounting frame 4...Upper support plate 5...
Upper support plate 9...first arm 11...third
Arm 13...2nd arm 1st...door

Claims (1)

[Claims] A mounting frame 1 having upper and lower support plates 4 and 5, and a mounting frame 1 having one end 9a rotatably supported on the lower surface side of the upper support plate 4 at one end 6 of the mounting frame 1. 1 arm 9 and one end 11
a is a third arm 11 rotatably supported on the upper surface side of the lower support plate 5 at the other end 6a of the mounting frame 1, and both ends 13a and 13b are the other end of the first arm 9. It consists of a second arm 13 for door attachment which is rotatably supported on the lower surface side of the third arm 9b and on the upper surface side of the other end 11b of the third arm 11, and the second arm 13 is connected to the first arm 11b. 9 and a third arm 11, respectively, so as to be able to rotate in either the left or right direction.